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Workshop Technology

Workshop Technology
A diamond pointed chisel is used for cutting

V-shaped grooves
Grooves
Key-ways
Flat surfaces

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Workshop Technology
During cold working process

Grain structure is distorted
All of the listed here
Close dimensional tolerance can be maintained
Strength and hardness of metal increases

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Workshop Technology
The oxyacetylene gas used in gas welding produce a flame temperature of

2100°C
1800°C
3200°C
2400°C

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Workshop Technology
In backhand welding, the angle between the welding torch and the work is kept as

50°-60°
60°-70°
40°-50°
30°-40°

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Workshop Technology
Which of the following methods can be used for manufacturing 2 meter long seamless metallic tubes?

Extrusion
Drawing
Rolling
Extrusion and rolling

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Workshop Technology
The recrystallisation temperature of steel is

None of these
600°C
400°C
800°C

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